Talking all things skin with Integrative Skin Therapist & Nutritionist Mel Heath

Mel Heath is an Integrative skin nutritionist and the founder of Your Root Cause. With a background as a skin therapist, Mel has spent over 30 years working closely with women and understands how deeply skin concerns can impact confidence and wellbeing.

After experiencing her own struggles with acne, hormonal imbalances and gut issues, Mel went on to study Integrative Nutrition to better understand the connection between skin and internal health.

Today she combines nutrition, lifestyle support, and targeted skin treatments, such as light therapy, enzyme treatments, and salicylic exfoliation, to help clients address the root causes of skin concerns like acne, inflammation, ageing, and hormonal breakouts.

Listen to the full podcast episode below or on Spotify or Apple Podcasts.

Tell me about your journey to becoming an Integrative Skin Nutritionist. What led you there?

My journey really came from both my work in the skin industry and my own health struggles.

I originally trained as a beauty therapist and spent years treating skin in the treatment room. Every day I saw how much skin concerns like acne, ageing, inflammation or breakouts can affect people’s confidence.

At the same time, I was also dealing with my own skin and hormonal issues. When I was younger I struggled with quite severe acne, and later in life I experienced gut and hormonal problems. I remember thinking I was doing all the right things, but I still wasn’t getting the results I hoped for.

At one stage I probably had more skincare products in my bathroom than food in my fridge, and that’s when I started to realise maybe the answer wasn’t just in the products.

That curiosity really made me start asking more questions about what was happening deeper in the body.

So in my 40s I made the decision to study Integrative Nutrition, which was a pretty big step for me because I hadn’t studied at that level before. It definitely had its challenging moments, but it was also incredibly rewarding and, honestly, life changing.

Through those years of study I learnt so much about gut health, hormones and lifestyle factors that influence the skin, and it completely changed the way I look at skin health today.

That’s really how Your Root Cause was born, helping people look a little deeper and understand what the body might be trying to communicate, rather than just treating the symptoms we see on the surface.

Tell me about the skin connection to the rest of the body and why it is important to look at the whole body.

One of the biggest things I try to teach people is that the skin is not separate from the rest of the body.

The skin is actually one of our largest organs, it often reflects what is happening internally. Things like gut health, hormones, stress levels, blood sugar balance and liver function can all show up on the skin.

For instance, chronic acne, rosacea, or inflammation is frequently associated with internal imbalances, including hormonal fluctuations, gastrointestinal dysfunction, or prolonged stress.

So instead of just asking, “What cream should I use?” I like to ask, "What might the body be trying to tell us?”

When we start supporting the body systems, the gut, the liver, hormones and the nervous system, the skin often improves naturally as a result. 

“Your skin is often the messenger, not the problem.” 

Is dairy really something you should avoid to support your skin?

I don’t believe in strict rules where everyone has to eliminate foods forever. Nutrition should feel supportive, not restrictive.

However, dairy can be a trigger for some people, particularly those struggling with acne. Dairy can influence certain hormones in the body that may increase oil production and inflammation in the skin.

For some clients, especially with hormonal acne, removing dairy temporarily can make a noticeable difference.

But it really depends on the individual. Some people tolerate dairy perfectly well, especially high-quality options like yoghurt or cheese.

The key is understanding your own body rather than following one rule for everyone.

What are your go to skin support tips and tools?

I always start with the foundations because they’re often overlooked.

Things like:
• Eating whole foods and plenty of vegetables
• Supporting gut health
• Hydration
• Quality sleep
• Managing stress
• Daily movement

For example, I always encourage people to aim for around five cups of vegetables per day because fibre and nutrients are essential for gut health, detoxification, and hormonal balance.

From a supplement perspective, things like omega-3s, zinc, probiotics or nutrients that support the liver can be helpful depending on the individual.

But supplements should always support the basics, they shouldn’t replace them. 

Are there any specific ingredients in skincare products that are important to avoid or to include?

I like skincare that focuses on supporting the skin barrier and calming inflammation. Depending on your skin type, ingredients like enzymes, vitamin A, niacinamides, ceramides, antioxidants, and gentle exfoliating acids can be very helpful.

In clinic, when I’m doing skin treatments, I also find certain treatments work really well. Enzyme treatments are fantastic for dissolving dead skin cells without being too aggressive, LED light therapy is great for calming inflammation and supporting healing, and salicylic-based exfoliation or peels can work really well for congestion and acne-prone skin.

But again, the best results usually come from combining the right skincare and treatments with supporting the body internally.

What is the most underrated skincare step?

Honestly, supporting the skin from within.

People often spend a lot of money on skincare products, but if things like their gut health, hormones, or stress levels are out of balance, their skin will still struggle.

Internally, things like good nutrition, stress management and sleep are incredibly powerful for skin health.

From a topical perspective, I would also say consistently good skincare, regular skin treatments, and protecting the skin barrier are very underrated steps.

Socials and contact information

Instagram: @yourrootcause
Website: www.yourrootcause.com.au

Kelsey Petherick